@book { CauseRelatedMarketingBestimmungerfolgskritischerFaktoren,
    title = "Cause Related Marketing - Bestimmung erfolgskritischer Faktoren",
    author = "Timo {Geißel}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842800229",
    url = "https://m.diplom.de/document/227374"
}